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1 user currently in Rom Hacking:  hukka |
| Acmlm's Board - I2 Archive - Rom Hacking - I'll walk you through your first ASM hack! |
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Rockman Flurry Level: 26 Posts: 1/250 EXP: 96387 For next: 5888 Since: 03-17-04 Since last post: 18 days Last activity: 16 days |
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| My first ROM hacking document covers how to do your first ASM hack. How to give Infinite Lives in Super Mario Bros. http://www.geocities.com/rockmanx054/asm.txt Its probably better if you download it so you can use word wrap. I might make it an html file. (edited by Rockman on 03-28-04 11:51 PM) (edited by Cookie Wookie on 03-29-04 01:10 AM) (edited by Rockman on 03-29-04 03:25 PM) |
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Elric Chasupa  Currently Playing: You Like A Lute. Level: 40 Posts: 12/687 EXP: 440016 For next: 1293 Since: 03-15-04 From: Melniboné Since last post: 6 hours Last activity: 6 hours |
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| Very nice! I've had plenty of experiance with hex, but none with ASM, yet I was able to understand what you were saying. Thank you. I may never use this, but I saved it, just in case.  |
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Rockman Flurry Level: 26 Posts: 2/250 EXP: 96387 For next: 5888 Since: 03-17-04 Since last post: 18 days Last activity: 16 days |
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Thank you!  As I posted on the TEK Hacks board, I made this document to help newbies begin ASM hacking. I feel bad because some of them really want to learn this stuff.(edited by Rockman on 03-28-04 11:51 PM) (edited by Cookie Wookie on 03-29-04 01:11 AM) (edited by Rockman on 03-29-04 03:25 PM) |
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Apophis Red Super Koopa Level: 45 Posts: 60/882 EXP: 640255 For next: 19909 Since: 03-15-04 Since last post: 15 hours Last activity: 15 hours |
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| Damn, I wish you had done this years ago when I was learning ASM. Oh well, great job. Plan to do any more ASM tutorials? | |||
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Kefka Indefinitely Unbanned Level: 81 Posts: 185/3392 EXP: 4826208 For next: 166641 Since: 03-15-04 From: Pomona, CALIFORNIA BABY! Since last post: 4 hours Last activity: 4 hours |
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| Nice. Very nice. Easy for anyone with a little knowledge of ROM hacking to understand. Great job. And it worked for me |
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Ok Impala! Buzzy Beetle Level: 31 Posts: 11/383 EXP: 183070 For next: 2293 Since: 03-16-04 From: The Netherlands Since last post: 4 days Last activity: 23 hours |
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| Ok! This is great! Thanks a lot, I was waiting for such a document! |
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Xeolord - B l u e s - Power Metal > All Level: 81  Posts: 256/3418 EXP: 4884196 For next: 108653 Since: 03-15-04 From: Yeah Since last post: 15 hours Last activity: 15 hours |
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| I don't think I've seen this at TEK, I'm seeing it now though. Should come in handy. (edited by Xeogred on 03-17-04 04:04 PM) |
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Darth Coby Vire Dacht je nou echt dat het over was? Dacht je nou echt dat ik gebroken was? Nee toch? Nou kijk eens goed op uit je ogen gast. zonder clic heb je geen kloten tjap... bitch Level: 55  Posts: 25/1371 EXP: 1240774 For next: 73415 Since: 03-15-04 From: Belgium Since last post: 2 days Last activity: 9 hours |
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Nice document, I've learned this with Metroid though.  |
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Juggling Joker Boomerang Brother SMW Hacking Moderator Yeah, JAMH is still being worked on. Level: 48 Posts: 12/1033 EXP: 811447 For next: 12096 Since: 03-15-04 From: Wyoming Since last post: 2 days Last activity: 3 hours |
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| Dear lord, that was easy to follow. I've looked through the other documents that have been floating around for a while, and they were too technical for a first year CS student like me to grasp totally. Which is exactly why I love my programming class so much, it puts the concepts in terms that I can easily understand. Good job. | |||
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Mega-Dog Level: 20  Posts: 31/139 EXP: 40051 For next: 2388 Since: 03-15-04 From: Minnesota Since last post: 8 days Last activity: 4 days |
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| nice...I have been looking for some ASM help so I can learn it sometime...I should read it soon. | |||
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Rockman Flurry Level: 26 Posts: 3/250 EXP: 96387 For next: 5888 Since: 03-17-04 Since last post: 18 days Last activity: 16 days |
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Thank you everyone! I appreciate it. I'm glad the document is helping you out. I do plan to make more. I'm still kind of an ASM rookie myself, but I have learned a lot. I'm off from work tomorrow, so I might make another one. Have fun.  (edited by Rockman on 03-28-04 11:52 PM) (edited by Cookie Wookie on 03-29-04 01:11 AM) (edited by Rockman on 03-29-04 03:26 PM) |
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Blades Paratroopa I hack rom; me admin Level: 21  Posts: 23/151 EXP: 45354 For next: 4589 Since: 03-15-04 From: Pr�vost, Qu�bec, Canada Since last post: 31 days Last activity: 5 days |
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| Nice I'm taking an ASM this semester. So far so good. Maybe I'll be able to add ASM mods in my long forgotten DW hacking .... |
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frantik Paragoomba Level: 15 Posts: 10/66 EXP: 13104 For next: 3280 Since: 03-15-04 Since last post: 400 days Last activity: 339 days |
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| nice job! one thing that could make it easier though is instead of searching for the hex values in the rom file, you can go directly to their location by taking the Memory address in the debugger and subtracting $7FF0 (because the rom, minus the $10 byte header, is loaded at $8000 for the NES) $9069:A9 02 LDA #$02 $906B:8D 5A 07 STA $075A = #$00 $9069 - $7FF0 = $1079 then just go to that location in your hex editor. (edited by frantik on 03-18-04 05:49 AM) |
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TFG Level: 5 Posts: 2/7 EXP: 452 For next: 77 Since: 03-15-04 Since last post: 269 days Last activity: 265 days |
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Originally posted by frantik That wouldn't work for every NES game. The resultant rom address would depend on what PRG bank is loaded at the moment you find your instruction/data. SMB, for instance, has two 16K PRG banks, loaded at $8000 and $C000 respectively. Older games, say Donkey Kong, have only 1 16K PRG bank loaded at $C000. Then you have bankswitching games in which the size of the bank and its base address is mapper-dependent. So I'd say that searching for the values might be a better option. |
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frantik Paragoomba Level: 15 Posts: 11/66 EXP: 13104 For next: 3280 Since: 03-15-04 Since last post: 400 days Last activity: 339 days |
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my n00bness has been exposed.  it's worked for me in SMB but thats the only game with which ive worked  |
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Darth Coby Vire Dacht je nou echt dat het over was? Dacht je nou echt dat ik gebroken was? Nee toch? Nou kijk eens goed op uit je ogen gast. zonder clic heb je geen kloten tjap... bitch Level: 55 Posts: 32/1371 EXP: 1240774 For next: 73415 Since: 03-15-04 From: Belgium Since last post: 2 days Last activity: 9 hours |
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| I always just search for the hex string, always works for me. |
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Kefka Indefinitely Unbanned Level: 81 Posts: 249/3392 EXP: 4826208 For next: 166641 Since: 03-15-04 From: Pomona, CALIFORNIA BABY! Since last post: 4 hours Last activity: 4 hours |
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Um, Googie... wtf has happened to you?!?!  |
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cpubasic13 17 years old now. Time to buy some M rated games by myself! Level: 54  Posts: 27/1346 EXP: 1206934 For next: 26936 Since: 03-15-04 From: Blame my parents, Eddy Since last post: 2 days Last activity: 1 day |
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Originally posted by Mighty Kefka I think that is the way he normally talks... Anyway, that was perfect! It tells you the stuff you need to know. For the next tutorial, could you make it to where we learn how to change the number of lives in SMW? I want to make it to where the player has three lives instead of five. |
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Keitaro Iron Knuckle ウラシマ ケイタロウ Level: 54 Posts: 60/1342 EXP: 1201569 For next: 32301 Since: 03-15-04 From: Hinata, Japan Since last post: 2 days Last activity: 2 days |
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| dosn't require ASM knowledge, just knowledge in general. ....good luck. oh, and EXCELLENT tutorial. You have a knack for explaining this stuff (edited by MajinBlueDragon on 03-19-04 06:23 PM) |
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Garmichael Octoballoon Level: 21  Posts: 33/166 EXP: 47489 For next: 2454 Since: 06-27-04 From: Bremerton, Wa Since last post: 316 days Last activity: 113 days |
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| I hate bumping old old old threads.. but.. The link to tehe tutorial didnt work, and id very much like to read it. I took a couple quarters of ASM programming, but that was years ago, and I didnt understand it completely. |
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| Acmlm's Board - I2 Archive - Rom Hacking - I'll walk you through your first ASM hack! |
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